Home / 12,913.04-17,815.54-7,247.01

Finding the Fourth Proportional to 12,913.04, 17,815.54 and 7,247.01

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Solution

The fourth proportional to 12,913.04, 17,815.54 and 7,247.01 is: 9,998.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913.04 : 17,815.54 = 7,247.01 : x
  2. Step 2: Convert to fraction form
    12,913.04/17,815.54 = 7,247.01/x
  3. Step 3: Cross multiply
    12,913.04x = 17,815.54 × 7,247.01
  4. Step 4: Simplify right side
    12,913.04x = 129,109,396.54
  5. Step 5: Solve for x
    x = 129,109,396.54/12,913.04
  6. Step 6: Final answer
    x = 9,998.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.